/*
 * Copyright (c) 2021, 2021, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.truffle.espresso.ffi;

/**
 * Encoded native types similar to j* types defined for JNI.
 * 
 * This enum provides an unambiguous mapping from Java to native (similar to JNI j* types), and from
 * native to Java.
 * 
 * {@link #BOOLEAN} encodes a native 1-byte value, a boolean in Java.
 * 
 * {@link #SHORT} and {@link #CHAR} represents the same native 2-byte value, but a short and char
 * types in Java.
 */
public enum NativeType {

    VOID,
    BOOLEAN, // 1 byte
    BYTE,
    CHAR, // unsigned short
    SHORT,
    INT,
    LONG,
    FLOAT,
    DOUBLE,

    OBJECT, // word-sized handle
    POINTER,
    BITFIELD_INT,
}
